2 * TI DaVinci DM646X EVM board
4 * Derived from: arch/arm/mach-davinci/board-evm.c
5 * Copyright (C) 2006 Texas Instruments.
7 * (C) 2007-2008, MontaVista Software, Inc.
9 * This file is licensed under the terms of the GNU General Public License
10 * version 2. This program is licensed "as is" without any warranty of any
11 * kind, whether express or implied.
15 /**************************************************************************
17 **************************************************************************/
19 #include <linux/kernel.h>
20 #include <linux/init.h>
21 #include <linux/leds.h>
22 #include <linux/gpio.h>
23 #include <linux/platform_device.h>
24 #include <linux/i2c.h>
25 #include <linux/platform_data/at24.h>
26 #include <linux/i2c/pcf857x.h>
28 #include <media/tvp514x.h>
29 #include <media/adv7343.h>
31 #include <linux/mtd/mtd.h>
32 #include <linux/mtd/nand.h>
33 #include <linux/mtd/partitions.h>
34 #include <linux/clk.h>
35 #include <linux/export.h>
36 #include <linux/platform_data/gpio-davinci.h>
37 #include <linux/platform_data/i2c-davinci.h>
38 #include <linux/platform_data/mtd-davinci.h>
39 #include <linux/platform_data/mtd-davinci-aemif.h>
41 #include <asm/mach-types.h>
42 #include <asm/mach/arch.h>
44 #include <mach/common.h>
45 #include <mach/irqs.h>
46 #include <mach/serial.h>
47 #include <mach/clock.h>
48 #include <mach/cdce949.h>
53 #define NAND_BLOCK_SIZE SZ_128K
55 /* Note: We are setting first partition as 'bootloader' constituting UBL, U-Boot
56 * and U-Boot environment this avoids dependency on any particular combination
57 * of UBL, U-Boot or flashing tools etc.
59 static struct mtd_partition davinci_nand_partitions
[] = {
61 /* UBL, U-Boot with environment */
63 .offset
= MTDPART_OFS_APPEND
,
64 .size
= 16 * NAND_BLOCK_SIZE
,
65 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
68 .offset
= MTDPART_OFS_APPEND
,
73 .offset
= MTDPART_OFS_APPEND
,
74 .size
= MTDPART_SIZ_FULL
,
79 static struct davinci_aemif_timing dm6467tevm_nandflash_timing
= {
89 static struct davinci_nand_pdata davinci_nand_data
= {
92 .parts
= davinci_nand_partitions
,
93 .nr_parts
= ARRAY_SIZE(davinci_nand_partitions
),
94 .ecc_mode
= NAND_ECC_HW
,
99 static struct resource davinci_nand_resources
[] = {
101 .start
= DM646X_ASYNC_EMIF_CS2_SPACE_BASE
,
102 .end
= DM646X_ASYNC_EMIF_CS2_SPACE_BASE
+ SZ_32M
- 1,
103 .flags
= IORESOURCE_MEM
,
105 .start
= DM646X_ASYNC_EMIF_CONTROL_BASE
,
106 .end
= DM646X_ASYNC_EMIF_CONTROL_BASE
+ SZ_4K
- 1,
107 .flags
= IORESOURCE_MEM
,
111 static struct platform_device davinci_nand_device
= {
112 .name
= "davinci_nand",
115 .num_resources
= ARRAY_SIZE(davinci_nand_resources
),
116 .resource
= davinci_nand_resources
,
119 .platform_data
= &davinci_nand_data
,
123 #define HAS_ATA IS_ENABLED(CONFIG_BLK_DEV_PALMCHIP_BK3710)
125 /* CPLD Register 0 bits to control ATA */
126 #define DM646X_EVM_ATA_RST BIT(0)
127 #define DM646X_EVM_ATA_PWD BIT(1)
129 /* CPLD Register 0 Client: used for I/O Control */
130 static int cpld_reg0_probe(struct i2c_client
*client
,
131 const struct i2c_device_id
*id
)
135 struct i2c_msg msg
[2] = {
137 .addr
= client
->addr
,
143 .addr
= client
->addr
,
150 /* Clear ATA_RSTn and ATA_PWD bits to enable ATA operation. */
151 i2c_transfer(client
->adapter
, msg
, 1);
152 data
&= ~(DM646X_EVM_ATA_RST
| DM646X_EVM_ATA_PWD
);
153 i2c_transfer(client
->adapter
, msg
+ 1, 1);
159 static const struct i2c_device_id cpld_reg_ids
[] = {
164 static struct i2c_driver dm6467evm_cpld_driver
= {
165 .driver
.name
= "cpld_reg0",
166 .id_table
= cpld_reg_ids
,
167 .probe
= cpld_reg0_probe
,
172 static struct gpio_led evm_leds
[] = {
173 { .name
= "DS1", .active_low
= 1, },
174 { .name
= "DS2", .active_low
= 1, },
175 { .name
= "DS3", .active_low
= 1, },
176 { .name
= "DS4", .active_low
= 1, },
179 static const struct gpio_led_platform_data evm_led_data
= {
180 .num_leds
= ARRAY_SIZE(evm_leds
),
184 static struct platform_device
*evm_led_dev
;
186 static int evm_led_setup(struct i2c_client
*client
, int gpio
,
187 unsigned int ngpio
, void *c
)
189 struct gpio_led
*leds
= evm_leds
;
197 evm_led_dev
= platform_device_alloc("leds-gpio", 0);
198 platform_device_add_data(evm_led_dev
, &evm_led_data
,
199 sizeof(evm_led_data
));
201 evm_led_dev
->dev
.parent
= &client
->dev
;
202 status
= platform_device_add(evm_led_dev
);
204 platform_device_put(evm_led_dev
);
210 static int evm_led_teardown(struct i2c_client
*client
, int gpio
,
211 unsigned ngpio
, void *c
)
214 platform_device_unregister(evm_led_dev
);
220 static int evm_sw_gpio
[4] = { -EINVAL
, -EINVAL
, -EINVAL
, -EINVAL
};
222 static int evm_sw_setup(struct i2c_client
*client
, int gpio
,
223 unsigned ngpio
, void *c
)
229 for (i
= 0; i
< 4; ++i
) {
230 snprintf(label
, 10, "user_sw%d", i
);
231 status
= gpio_request(gpio
, label
);
234 evm_sw_gpio
[i
] = gpio
++;
236 status
= gpio_direction_input(evm_sw_gpio
[i
]);
238 gpio_free(evm_sw_gpio
[i
]);
239 evm_sw_gpio
[i
] = -EINVAL
;
243 status
= gpio_export(evm_sw_gpio
[i
], 0);
245 gpio_free(evm_sw_gpio
[i
]);
246 evm_sw_gpio
[i
] = -EINVAL
;
252 for (i
= 0; i
< 4; ++i
) {
253 if (evm_sw_gpio
[i
] != -EINVAL
) {
254 gpio_free(evm_sw_gpio
[i
]);
255 evm_sw_gpio
[i
] = -EINVAL
;
261 static int evm_sw_teardown(struct i2c_client
*client
, int gpio
,
262 unsigned ngpio
, void *c
)
266 for (i
= 0; i
< 4; ++i
) {
267 if (evm_sw_gpio
[i
] != -EINVAL
) {
268 gpio_unexport(evm_sw_gpio
[i
]);
269 gpio_free(evm_sw_gpio
[i
]);
270 evm_sw_gpio
[i
] = -EINVAL
;
276 static int evm_pcf_setup(struct i2c_client
*client
, int gpio
,
277 unsigned int ngpio
, void *c
)
284 status
= evm_sw_setup(client
, gpio
, 4, c
);
288 return evm_led_setup(client
, gpio
+4, 4, c
);
291 static int evm_pcf_teardown(struct i2c_client
*client
, int gpio
,
292 unsigned int ngpio
, void *c
)
296 evm_sw_teardown(client
, gpio
, 4, c
);
297 evm_led_teardown(client
, gpio
+4, 4, c
);
302 static struct pcf857x_platform_data pcf_data
= {
303 .gpio_base
= DAVINCI_N_GPIO
+1,
304 .setup
= evm_pcf_setup
,
305 .teardown
= evm_pcf_teardown
,
308 /* Most of this EEPROM is unused, but U-Boot uses some data:
309 * - 0x7f00, 6 bytes Ethernet Address
310 * - ... newer boards may have more
313 static struct at24_platform_data eeprom_info
= {
314 .byte_len
= (256*1024) / 8,
316 .flags
= AT24_FLAG_ADDR16
,
317 .setup
= davinci_get_mac_addr
,
318 .context
= (void *)0x7f00,
321 static u8 dm646x_iis_serializer_direction
[] = {
322 TX_MODE
, RX_MODE
, INACTIVE_MODE
, INACTIVE_MODE
,
325 static u8 dm646x_dit_serializer_direction
[] = {
329 static struct snd_platform_data dm646x_evm_snd_data
[] = {
331 .tx_dma_offset
= 0x400,
332 .rx_dma_offset
= 0x400,
333 .op_mode
= DAVINCI_MCASP_IIS_MODE
,
334 .num_serializer
= ARRAY_SIZE(dm646x_iis_serializer_direction
),
336 .serial_dir
= dm646x_iis_serializer_direction
,
337 .asp_chan_q
= EVENTQ_0
,
340 .tx_dma_offset
= 0x400,
342 .op_mode
= DAVINCI_MCASP_DIT_MODE
,
343 .num_serializer
= ARRAY_SIZE(dm646x_dit_serializer_direction
),
345 .serial_dir
= dm646x_dit_serializer_direction
,
346 .asp_chan_q
= EVENTQ_0
,
350 static struct i2c_client
*cpld_client
;
352 static int cpld_video_probe(struct i2c_client
*client
,
353 const struct i2c_device_id
*id
)
355 cpld_client
= client
;
359 static int cpld_video_remove(struct i2c_client
*client
)
365 static const struct i2c_device_id cpld_video_id
[] = {
370 static struct i2c_driver cpld_video_driver
= {
372 .name
= "cpld_video",
374 .probe
= cpld_video_probe
,
375 .remove
= cpld_video_remove
,
376 .id_table
= cpld_video_id
,
379 static void evm_init_cpld(void)
381 i2c_add_driver(&cpld_video_driver
);
384 static struct i2c_board_info __initdata i2c_info
[] = {
386 I2C_BOARD_INFO("24c256", 0x50),
387 .platform_data
= &eeprom_info
,
390 I2C_BOARD_INFO("pcf8574a", 0x38),
391 .platform_data
= &pcf_data
,
394 I2C_BOARD_INFO("cpld_reg0", 0x3a),
397 I2C_BOARD_INFO("tlv320aic33", 0x18),
400 I2C_BOARD_INFO("cpld_video", 0x3b),
403 I2C_BOARD_INFO("cdce949", 0x6c),
407 static struct davinci_i2c_platform_data i2c_pdata
= {
408 .bus_freq
= 100 /* kHz */,
409 .bus_delay
= 0 /* usec */,
412 #define VCH2CLK_MASK (BIT_MASK(10) | BIT_MASK(9) | BIT_MASK(8))
413 #define VCH2CLK_SYSCLK8 (BIT(9))
414 #define VCH2CLK_AUXCLK (BIT(9) | BIT(8))
415 #define VCH3CLK_MASK (BIT_MASK(14) | BIT_MASK(13) | BIT_MASK(12))
416 #define VCH3CLK_SYSCLK8 (BIT(13))
417 #define VCH3CLK_AUXCLK (BIT(14) | BIT(13))
419 #define VIDCH2CLK (BIT(10))
420 #define VIDCH3CLK (BIT(11))
421 #define VIDCH1CLK (BIT(4))
422 #define TVP7002_INPUT (BIT(4))
423 #define TVP5147_INPUT (~BIT(4))
424 #define VPIF_INPUT_ONE_CHANNEL (BIT(5))
425 #define VPIF_INPUT_TWO_CHANNEL (~BIT(5))
426 #define TVP5147_CH0 "tvp514x-0"
427 #define TVP5147_CH1 "tvp514x-1"
429 /* spin lock for updating above registers */
430 static spinlock_t vpif_reg_lock
;
432 static int set_vpif_clock(int mux_mode
, int hd
)
442 /* disable the clock */
443 spin_lock_irqsave(&vpif_reg_lock
, flags
);
444 value
= __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_VSCLKDIS
));
445 value
|= (VIDCH3CLK
| VIDCH2CLK
);
446 __raw_writel(value
, DAVINCI_SYSMOD_VIRT(SYSMOD_VSCLKDIS
));
447 spin_unlock_irqrestore(&vpif_reg_lock
, flags
);
449 val
= i2c_smbus_read_byte(cpld_client
);
458 err
= i2c_smbus_write_byte(cpld_client
, val
);
462 value
= __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_VIDCLKCTL
));
463 value
&= ~(VCH2CLK_MASK
);
464 value
&= ~(VCH3CLK_MASK
);
467 value
|= (VCH2CLK_SYSCLK8
| VCH3CLK_SYSCLK8
);
469 value
|= (VCH2CLK_AUXCLK
| VCH3CLK_AUXCLK
);
471 __raw_writel(value
, DAVINCI_SYSMOD_VIRT(SYSMOD_VIDCLKCTL
));
473 spin_lock_irqsave(&vpif_reg_lock
, flags
);
474 value
= __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_VSCLKDIS
));
475 /* enable the clock */
476 value
&= ~(VIDCH3CLK
| VIDCH2CLK
);
477 __raw_writel(value
, DAVINCI_SYSMOD_VIRT(SYSMOD_VSCLKDIS
));
478 spin_unlock_irqrestore(&vpif_reg_lock
, flags
);
483 static struct vpif_subdev_info dm646x_vpif_subdev
[] = {
487 I2C_BOARD_INFO("adv7343", 0x2a),
493 I2C_BOARD_INFO("ths7303", 0x2c),
498 static const struct vpif_output dm6467_ch0_outputs
[] = {
503 .type
= V4L2_OUTPUT_TYPE_ANALOG
,
504 .capabilities
= V4L2_OUT_CAP_STD
,
507 .subdev_name
= "adv7343",
508 .output_route
= ADV7343_COMPOSITE_ID
,
514 .type
= V4L2_OUTPUT_TYPE_ANALOG
,
515 .capabilities
= V4L2_OUT_CAP_DV_TIMINGS
,
517 .subdev_name
= "adv7343",
518 .output_route
= ADV7343_COMPONENT_ID
,
524 .type
= V4L2_OUTPUT_TYPE_ANALOG
,
525 .capabilities
= V4L2_OUT_CAP_STD
,
528 .subdev_name
= "adv7343",
529 .output_route
= ADV7343_SVIDEO_ID
,
533 static struct vpif_display_config dm646x_vpif_display_config
= {
534 .set_clock
= set_vpif_clock
,
535 .subdevinfo
= dm646x_vpif_subdev
,
536 .subdev_count
= ARRAY_SIZE(dm646x_vpif_subdev
),
538 .outputs
= dm6467_ch0_outputs
,
539 .output_count
= ARRAY_SIZE(dm6467_ch0_outputs
),
541 .card_name
= "DM646x EVM",
545 * setup_vpif_input_path()
546 * @channel: channel id (0 - CH0, 1 - CH1)
547 * @sub_dev_name: ptr sub device name
549 * This will set vpif input to capture data from tvp514x or
552 static int setup_vpif_input_path(int channel
, const char *sub_dev_name
)
557 /* for channel 1, we don't do anything */
564 val
= i2c_smbus_read_byte(cpld_client
);
568 if (!strcmp(sub_dev_name
, TVP5147_CH0
) ||
569 !strcmp(sub_dev_name
, TVP5147_CH1
))
570 val
&= TVP5147_INPUT
;
572 val
|= TVP7002_INPUT
;
574 err
= i2c_smbus_write_byte(cpld_client
, val
);
581 * setup_vpif_input_channel_mode()
582 * @mux_mode: mux mode. 0 - 1 channel or (1) - 2 channel
584 * This will setup input mode to one channel (TVP7002) or 2 channel (TVP5147)
586 static int setup_vpif_input_channel_mode(int mux_mode
)
596 val
= i2c_smbus_read_byte(cpld_client
);
600 spin_lock_irqsave(&vpif_reg_lock
, flags
);
601 value
= __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_VIDCLKCTL
));
603 val
&= VPIF_INPUT_TWO_CHANNEL
;
606 val
|= VPIF_INPUT_ONE_CHANNEL
;
609 __raw_writel(value
, DAVINCI_SYSMOD_VIRT(SYSMOD_VIDCLKCTL
));
610 spin_unlock_irqrestore(&vpif_reg_lock
, flags
);
612 err
= i2c_smbus_write_byte(cpld_client
, val
);
619 static struct tvp514x_platform_data tvp5146_pdata
= {
625 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
627 static struct vpif_subdev_info vpif_capture_sdev_info
[] = {
631 I2C_BOARD_INFO("tvp5146", 0x5d),
632 .platform_data
= &tvp5146_pdata
,
638 I2C_BOARD_INFO("tvp5146", 0x5c),
639 .platform_data
= &tvp5146_pdata
,
644 static const struct vpif_input dm6467_ch0_inputs
[] = {
649 .type
= V4L2_INPUT_TYPE_CAMERA
,
650 .capabilities
= V4L2_IN_CAP_STD
,
651 .std
= TVP514X_STD_ALL
,
653 .subdev_name
= TVP5147_CH0
,
654 .input_route
= INPUT_CVBS_VI2B
,
655 .output_route
= OUTPUT_10BIT_422_EMBEDDED_SYNC
,
659 static const struct vpif_input dm6467_ch1_inputs
[] = {
664 .type
= V4L2_INPUT_TYPE_CAMERA
,
665 .capabilities
= V4L2_IN_CAP_STD
,
666 .std
= TVP514X_STD_ALL
,
668 .subdev_name
= TVP5147_CH1
,
669 .input_route
= INPUT_SVIDEO_VI2C_VI1C
,
670 .output_route
= OUTPUT_10BIT_422_EMBEDDED_SYNC
,
674 static struct vpif_capture_config dm646x_vpif_capture_cfg
= {
675 .setup_input_path
= setup_vpif_input_path
,
676 .setup_input_channel_mode
= setup_vpif_input_channel_mode
,
677 .subdev_info
= vpif_capture_sdev_info
,
678 .subdev_count
= ARRAY_SIZE(vpif_capture_sdev_info
),
680 .inputs
= dm6467_ch0_inputs
,
681 .input_count
= ARRAY_SIZE(dm6467_ch0_inputs
),
683 .if_type
= VPIF_IF_BT656
,
690 .inputs
= dm6467_ch1_inputs
,
691 .input_count
= ARRAY_SIZE(dm6467_ch1_inputs
),
693 .if_type
= VPIF_IF_BT656
,
701 static void __init
evm_init_video(void)
703 spin_lock_init(&vpif_reg_lock
);
705 dm646x_setup_vpif(&dm646x_vpif_display_config
,
706 &dm646x_vpif_capture_cfg
);
709 static void __init
evm_init_i2c(void)
711 davinci_init_i2c(&i2c_pdata
);
712 i2c_add_driver(&dm6467evm_cpld_driver
);
713 i2c_register_board_info(1, i2c_info
, ARRAY_SIZE(i2c_info
));
718 #define CDCE949_XIN_RATE 27000000
720 /* CDCE949 support - "lpsc" field is overridden to work as clock number */
721 static struct clk cdce_clk_in
= {
723 .rate
= CDCE949_XIN_RATE
,
726 static struct clk_lookup cdce_clks
[] = {
727 CLK(NULL
, "xin", &cdce_clk_in
),
728 CLK(NULL
, NULL
, NULL
),
731 static void __init
cdce_clk_init(void)
733 struct clk_lookup
*c
;
736 for (c
= cdce_clks
; c
->clk
; c
++) {
743 #define DM6467T_EVM_REF_FREQ 33000000
745 static void __init
davinci_map_io(void)
749 if (machine_is_davinci_dm6467tevm())
750 davinci_set_refclk_rate(DM6467T_EVM_REF_FREQ
);
755 #define DM646X_EVM_PHY_ID "davinci_mdio-0:01"
757 * The following EDMA channels/slots are not being used by drivers (for
758 * example: Timer, GPIO, UART events etc) on dm646x, hence they are being
759 * reserved for codecs on the DSP side.
761 static const s16 dm646x_dma_rsv_chans
[][2] = {
762 /* (offset, number) */
771 static const s16 dm646x_dma_rsv_slots
[][2] = {
772 /* (offset, number) */
782 static struct edma_rsv_info dm646x_edma_rsv
[] = {
784 .rsv_chans
= dm646x_dma_rsv_chans
,
785 .rsv_slots
= dm646x_dma_rsv_slots
,
789 static __init
void evm_init(void)
792 struct davinci_soc_info
*soc_info
= &davinci_soc_info
;
794 ret
= dm646x_gpio_register();
796 pr_warn("%s: GPIO init failed: %d\n", __func__
, ret
);
799 davinci_serial_init(dm646x_serial_device
);
800 dm646x_init_mcasp0(&dm646x_evm_snd_data
[0]);
801 dm646x_init_mcasp1(&dm646x_evm_snd_data
[1]);
803 if (machine_is_davinci_dm6467tevm())
804 davinci_nand_data
.timing
= &dm6467tevm_nandflash_timing
;
806 platform_device_register(&davinci_nand_device
);
808 dm646x_init_edma(dm646x_edma_rsv
);
813 soc_info
->emac_pdata
->phy_id
= DM646X_EVM_PHY_ID
;
816 MACHINE_START(DAVINCI_DM6467_EVM
, "DaVinci DM646x EVM")
817 .atag_offset
= 0x100,
818 .map_io
= davinci_map_io
,
819 .init_irq
= davinci_irq_init
,
820 .init_time
= davinci_timer_init
,
821 .init_machine
= evm_init
,
822 .init_late
= davinci_init_late
,
823 .dma_zone_size
= SZ_128M
,
824 .restart
= davinci_restart
,
827 MACHINE_START(DAVINCI_DM6467TEVM
, "DaVinci DM6467T EVM")
828 .atag_offset
= 0x100,
829 .map_io
= davinci_map_io
,
830 .init_irq
= davinci_irq_init
,
831 .init_time
= davinci_timer_init
,
832 .init_machine
= evm_init
,
833 .init_late
= davinci_init_late
,
834 .dma_zone_size
= SZ_128M
,
835 .restart
= davinci_restart
,